Abstract
In each issue of Communications , we publish selected posts or excerpts from the many blogs on our website. The views expressed by bloggers are their own and not necessarily held by Communications or the Association for Computing Machinery. Read more blogs and join the discussion at https://cacm.acm.org/blog. https://cacm.acm/blog Herbert Bruderer considers the societal downsides of digital technologies, while Alex Vakulov discusses how to protect data by making copies.
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